Calc Voltron: Legendary Defender calcs, part 3

1. Bakku Gardens Monster shatters a giant boulder
(Season 2, episode 2)
The Yellow Lion pushes a colossal boulder onto the monster of the Bakku Gardens, which it shatters in three headbutts. The Blue Lion is 49.1217672m long (sans its tail).
39 pixels = 49.1217672m
1 pixel = 49.1217672m/39 = 1.25953249m
1.25953249m X 310 = 390.455072m
390.455072m/2 = 195.227536m
1.25953249m X 231 = 290.952005m
290.952005m/2 = 145.476002m

V = 4/3πabc
= 4/3 X π X 195.227536 X 145.476002 X 145.476002
= 17306625.5m^3

Fragmentation of rock is 8000000 joules per m^3.

E = 17306625.5 X 8000000
= 1.38453004e14 joules
= 33.0910621415 kilotons

2. Robobeast destroys Balmera's Moons
A robobeasts beam destroys the two Moons of the Balmera. I'm assume Lunas diameter and mass, that being 3476.2km and 1.0e24kg.
62 pixels = 3476.2km
1 pixel = 3476.2km/62 = 56.0677419km

206 pixels = 3476.2km
1 pixel = 3476.2km/206 = 16.8747573km
Timeframe is 1 second.

56.0677419km X 182 = 10204.329km
16.8747573km X 447 = 7543.01651km

T = 10204.329km/1s
= 10204329m/s

T = 7543.01651km/1s
= 7543016.51m/s

KE = (0.5) X 1.0e24 X 10204329^2
= 5.20641652e37 joules

KE = (0.5) X 1.0e24 X 7543016.51^2
= 2.8448549e37 joules

Let's add those up for our total energy.

E = 5.20641652e37 + 2.8448549e37
= 8.05127142e37 joules
= 19.2430005258 ninatons

For a low end, we'll go with Saturns moon Mimas, which has a mass of 6.3 × 10^−6 Earths and has a diameter of 396km. The Earth weighs 5.97219e24kg.

M = 5.97219e24kg X 6.3e-6
= 3.7624797e19kg

(Low end)
62 pixels = 396km
1 pixel = 396km/62 = 6.38709677km
6.38709677km X 182 = 1162.45161km

T = 1162.45161km/1s
= 1162451.61m/s

KE = (0.5) X 3.7624797e19 X 1162451.61^2
= 2.54210764e31 joules

(High end)
206 pixels = 396km
1 pixel = 396km/206 = 1.9223301km
1.9223301km X 447 = 859.281555km

T = 859.281555km/1s
= 859281.555m/s

KE = (0.5) X 3.7624797e19 X 859281.555^2
= 1.38904127e31 joules

E = 2.54210764e31 + 1.38904127e31
= 3.93114891e31 joules
= 9.39567139101 zettatons